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A block of mass M=1 kg resting on a smoo...

A block of mass M=1 kg resting on a smooth horizontal surface is connected to a horizontal light spring of spring constant k=6N/m whose other end is fixed to a verticall wall. Another block of mass m=0.5 kg is placed over the block M. If the coefficient of friction between the two blocks `mu`=0.4, find the maximum kinetic energy (in J) that the system can have for simple hormonic oscillation under the action of the spring.

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